Multiple zone selective cross-over apparatus,申请号US19620247579-传众专利搜索

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发明名称	Multiple zone selective cross-over apparatus
摘要
申请公布号	US3198257(A)	申请公布日期	1965.08.03
申请号	US19620247579	申请日期	1962.12.27
申请人	BAKER OIL TOOLS, INC.	发明人	MYERS WILLIAM D.
分类号	E21B43/14	主分类号	E21B43/14
代理机构		代理人
主权项
地址

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